Sand box transfer device

Abstract

The utility model discloses a sand box conveying device, including the support of fixed ground and set up transmission mechanism on the support, the support includes two bracing bars of parallel arrangement, transmission mechanism includes the transmission shaft group of setting between two bracing bars, can dismantle and is equipped with a plurality of guide mechanisms to the length direction of bracing bar at the position of the transmission shaft group above on every bracing bar, when using, the tray of bearing sand box is by transmission shaft group and is driven to transfer, and by guide mechanism, the position of assisting and limiting tray movement is prevented, and the contact of tray and bracing bar forms the jam, thereby guaranteeing the smoothness of tray in the moving of transfer process. The utility model sets up the guide mechanism and assists and limits the position of tray in the moving when the tray of bearing sand box is transferred on the transmission shaft, is also guaranteed the smoothness of tray in the moving of transfer process when avoiding the contact of tray and bracing bar and forming the jam.

Description

Technical Field

[0001] This utility model relates to the field of casting production technology, and in particular to a sand box conveying device. Background Technology

[0002] Sand boxes typically need to be transferred for repeated use. However, the transfer direction of sand boxes is relatively simple, usually in a straight line. Therefore, the conveyor equipment for transferring sand boxes is usually very simple. But as production increases, the transfer of sand boxes also increases and becomes more frequent. As the drive shaft wears down, the transmission direction will deviate, causing the pallet to collide with the conveyor equipment. In severe cases, the pallet may become stuck in the transfer direction, seriously affecting the normal production order. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a sand box conveying device that can both help improve the smoothness of transportation and facilitate the replacement of parts.

[0004] To solve the above-mentioned technical problems, the present invention provides a sand box conveying device, including a support fixed to the ground and a transmission mechanism mounted on the support. The support includes two parallel support rods, and the transmission mechanism includes a transmission shaft assembly disposed between the two support rods. Multiple guide mechanisms are detachably provided along the length of each support rod at a position above the corresponding transmission shaft assembly. In use, the pallet carrying the sand box is driven to move by the transmission shaft assembly, and the guide mechanisms assist in limiting the movement of the pallet to prevent it from contacting the support rods and causing jamming, thereby ensuring smooth movement of the pallet during transport.

[0005] With the above structure, the two parallel support rods together form a double-track support style. The drive shaft set between the two support rods is a pallet that facilitates the transfer of the sand box. In order to prevent the pallet from colliding with the support rods during the transfer process and causing transportation blockage, multiple guide mechanisms are also provided on the support rods to help the pallet avoid contact with the support rods during the movement, thereby improving the transfer efficiency of the pallet and sand box.

[0006] To simplify the structure and facilitate the provision of sufficient transmission power, preferably, the drive shaft assembly includes multiple drive shafts arranged parallel to each other along the length of the two support rods. A power motor is provided on one side of the support rod near the sand box insertion end. The output end of the power motor is connected to the corresponding drive shaft. Adjacent drive shafts are connected by chain drive.

[0007] In order to facilitate the improvement of transmission power and avoid transmission failure due to slippage of the transmission shaft, preferably, a rubber sleeve is fixedly fitted on the outer side wall of each transmission shaft, and multiple clearance grooves are evenly provided on the rubber sleeve along the length direction of the transmission shaft.

[0008] To facilitate installation and simplify the installation structure, preferably, each guide mechanism includes a fixed plate mounted on the strut, a base plate connected to the fixed plate, and a guide wheel movably mounted between the fixed plate and the base plate. A horizontally extending extension is provided on the outer side wall of the strut, and the fixed plate is screwed to the extension. A placement hole is provided on the strut at the position corresponding to the guide wheel, and one side of the guide wheel extends into the placement hole and protrudes from the inner side wall of the strut.

[0009] To facilitate the guide wheel's adaptation to impacts from multiple directions, preferably, the fixing plate and the base plate together form a "U"-shaped groove, and the guide wheel is disposed within this "U"-shaped groove. A connecting rod is detachably fitted through the middle of the guide wheel. The fixing plate has a first guide groove for inserting one side of the connecting rod, and the base plate has a second guide groove for inserting the other side of the connecting rod. A first compression spring is provided in the first guide groove, with one end abutting against the insertion end of the connecting rod, and the other end of the first compression spring abutting against a corresponding position within the first guide groove. A second compression spring is provided in the second guide groove, with one end abutting against the insertion end of the connecting rod, and the other end of the second compression spring abutting against a corresponding position within the second guide groove.

[0010] To avoid transmission offset on one side of the connecting rod and to ensure transmission consistency in the guiding direction, preferably, the connecting rod has a first straight section with a rectangular cross-section on the side where it is inserted into the first guide groove, and the outer wall of the first straight section on the corresponding side is fitted to the groove wall of the first guide groove; a first stepped hole is provided on the side wall of the first guide groove, and a first compression spring is provided in the large end of the first stepped hole, one side of the first compression spring abuts against the stepped surface of the first stepped hole, and the other side of the first compression spring abuts against the outer wall of the first straight section; a horizontally extending first guide rod is screwed to one side of the first straight section, and the extended end of the first guide rod passes through the first compression spring and extends into the small end of the first stepped hole.

[0011] To avoid transmission offset on the other side of the connecting rod and to ensure transmission consistency in the guiding direction, preferably, the connecting rod has a rectangular cross-section on the side where it is inserted into the second guide groove, and the outer wall of the second straight section on the corresponding side is fitted to the groove wall of the second guide groove; a second stepped hole is provided on the side wall of the second guide groove, and a second compression spring is provided in the large end of the second stepped hole, one side of the second compression spring abuts against the stepped surface of the second stepped hole, and the other side of the second compression spring abuts against the outer wall of the second straight section; a horizontally extending second guide rod is screwed to one side of the second straight section, and the extended end of the second guide rod passes through the second compression spring and extends into the small end of the second stepped hole.

[0012] To facilitate the installation and positioning of the guide wheel and its replacement, preferably, two mounting slots are symmetrically provided on the connecting rod, and an open retaining spring is embedded in each mounting slot. The open end of the retaining spring is symmetrically provided with two clamping holes. An axle is sleeved in the guide wheel, and the outer walls on both sides of the axle are fitted to the inner walls of the corresponding retaining springs.

[0013] To prevent the guide rod from protruding and causing damage, preferably, a first protruding baffle is provided on the outer wall of the fixing plate at the position corresponding to the first step hole; and a second protruding baffle is provided on the outer wall of the bottom plate at the position corresponding to the second step hole.

[0014] To avoid collisions and injuries, it is preferable that both the first and second baffles have an arc-shaped structure.

[0015] Beneficial effects: When a pallet carrying a sand box is transported on a drive shaft, the present invention sets a guiding mechanism to help limit the position of the pallet during the movement. This not only avoids the pallet from contacting the support rod and causing jamming, but also ensures the smooth movement of the pallet during the transport process. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the installation structure of the guide wheel and the drive shaft.

[0019] Figure 3 This is a schematic diagram of the installation structure of the guide wheel.

[0020] Figure 4 This is a schematic diagram of the installation structure of the first and second baffles.

[0021] Figure 5 This is a schematic diagram of the installation structure of the snap ring.

[0022] Figure 6 This is a schematic diagram of the connecting rod.

[0023] The meanings of the labels in the attached diagram are as follows:

[0024] Support rod-1; Drive shaft-10; Power motor-11; Rubber sleeve-12; Relief groove-13; Extension section-14; Placement hole-15;

[0025] Fixed plate-2; Base plate-20; Guide wheel-21; Connecting rod-22; First straight section-221; Second straight section-222; Mounting groove-23; Snap ring-24; Clamping hole-25;

[0026] First guide groove -31; Second guide groove -32; First compression spring -41; Second compression spring -42;

[0027] First guide rod -51; Second guide rod -52;

[0028] First step hole - 61; Second step hole - 62; First baffle - 71; Second baffle - 72. Detailed Implementation

[0029] Depend on Figures 1 to 6 As shown, this utility model includes a bracket fixed to the ground and a transmission mechanism mounted on the bracket. The bracket includes two parallel support rods 1, and the transmission mechanism includes a transmission shaft assembly disposed between the two support rods 1. Multiple guide mechanisms are detachably provided along the length of each support rod 1 at a position above the corresponding transmission shaft assembly. In use, the pallet carrying the sand box is driven to move by the transmission shaft assembly, and the guide mechanisms assist in limiting the position of the pallet's movement to prevent the pallet from contacting the support rods and causing jamming, thereby ensuring the smooth movement of the pallet during transportation.

[0030] Specifically, the drive shaft assembly includes a plurality of drive shafts 10 arranged parallel to each other along the length of the two support rods 1. A power motor 11 is provided on one side of the support rod 1 near the sand box insertion end. The output end of the power motor 11 is connected to the corresponding drive shaft 10. Adjacent drive shafts 10 are connected by chain drive.

[0031] In this embodiment, a rubber sleeve 12 is fixedly fitted on the outer side wall of each of the drive shafts 10, and a plurality of clearance grooves 13 are uniformly provided on the rubber sleeve 12 along the length direction of the drive shaft 10.

[0032] Each of the guide mechanisms includes a fixed plate 2 mounted on the support rod 1, a base plate 20 connected to the fixed plate 2, and a guide wheel 21 movably mounted between the fixed plate 2 and the base plate 20. A horizontally extending extension section 14 is provided on the outer side wall of the support rod 1, and the fixed plate 2 is screwed to the extension section 14. A placement hole 15 is provided on the support rod 1 at the position corresponding to the guide wheel 21, and one side of the guide wheel 21 extends into the placement hole 15 and protrudes out of the inner side wall of the support rod 1.

[0033] The fixing plate 2 and the base plate 20 together form a U-shaped groove. The guide wheel 21 is disposed in the U-shaped groove. A connecting rod 22 is detachably sleeved in the middle of the guide wheel 21. The fixing plate 2 is provided with a first guide groove 31 for inserting one side of the connecting rod 22. The base plate 20 is provided with a second guide groove 32 for inserting the other side of the connecting rod 22. A first compression spring 41 is provided in the first guide groove 31, with one end abutting against the insertion end of the connecting rod 22. The other end of the first compression spring 41 abuts against the corresponding position in the first guide groove 31. A second compression spring 42 is provided in the second guide groove 32, with one end abutting against the insertion end of the connecting rod 22. The other end of the second compression spring 42 abuts against the corresponding position in the second guide groove 32.

[0034] Specifically, the connecting rod 22 has a rectangular cross-section first straight section 221 on one side where it is inserted into the first guide groove 31. The outer wall of the first straight section 221 on the corresponding side is fitted to the groove wall of the first guide groove 31. A first stepped hole 61 is provided on the side wall of the first guide groove 31. A first compression spring 41 is provided in the large hole end of the first stepped hole 61. One side of the first compression spring 41 abuts against the stepped surface of the first stepped hole 61, and the other side of the first compression spring 41 abuts against the outer wall of the first straight section 221. A horizontally extending first guide rod 51 is screwed to one side of the first straight section 221. The extended end of the first guide rod 51 passes through the first compression spring 41 and extends into the small hole end of the first stepped hole 61.

[0035] Meanwhile, the connecting rod 22 has a rectangular cross-section second straight section 222 on one side where it is inserted into the second guide groove 32. The outer wall of the second straight section 222 on the corresponding side is fitted to the groove wall of the second guide groove 32. A second stepped hole 62 is provided on the side wall of the second guide groove 32. A second compression spring 42 is provided in the large hole end of the second stepped hole 62. One side of the second compression spring 42 abuts against the stepped surface of the second stepped hole 62, and the other side of the second compression spring 42 abuts against the outer wall of the second straight section 222. A horizontally extending second guide rod 52 is screwed to one side of the second straight section 222. The extended end of the second guide rod 52 passes through the second compression spring 42 and extends into the small hole end of the second stepped hole 62.

[0036] In addition, two mounting grooves 23 are symmetrically provided on the connecting rod 22, and an open retaining spring 24 is embedded in each mounting groove 23. The open end of the retaining spring 24 is symmetrically provided with two clamping holes 25. An axle is sleeved in the guide wheel 21, and the outer walls on both sides of the axle are fitted to the inner walls of the retaining spring 24 on the corresponding sides.

[0037] In addition, a first baffle 71 is provided on the outer side wall of the fixing plate 2 at the position corresponding to the first step hole 61; a second baffle 72 is provided on the outer side wall of the bottom plate 20 at the position corresponding to the second step hole 62; both the first baffle 71 and the second baffle 72 are arc-shaped structures.

[0038] The working principle of this utility model is as follows:

[0039] like Figure 1 As shown, during installation, two support rods 1 are parallel to each other and fixed on the ground or a corresponding workbench (not shown). Multiple drive shafts 10 are arranged parallel to each other along the length of the support rods 1 between the two support rods 1. A power motor 11 is provided on one side of the support rod 1 near the sand box insertion end. The output end of the power motor 11 is connected to a drive shaft 10 at the corresponding position. Adjacent drive shafts 10 are connected by chain drive. Under pressure, the transmission power of the drive shafts 10 is fully guaranteed.

[0040] Next, as Figures 2 to 6 As shown, the guide wheel 21 is placed in the "U"-shaped groove formed by the fixed plate 2 and the base plate 20, and one side of the connecting rod 22 passes through the second guide groove 32 and the wheel axle in sequence, and extends into the first guide groove 31. At this time, the other side of the connecting rod 22 is located in the second guide groove 32, and the two threaded holes on the connecting rod 22 that are connected to the guide rod are facing the stepped holes at the corresponding positions.

[0041] Then, first insert one side of the first compression spring 41 into the large end of the first stepped hole 61, and make the other end of the first compression spring 41 abut against the outer wall of the corresponding side on the first straight section 221. Then insert the first guide rod 51 into the small end of the first stepped hole 61, and pass through the large end of the first stepped hole 61 and be sleeved in the first compression spring 41. Continue to insert it so that the insertion end of the first guide rod 51 is screwed and fixed to the threaded hole at the corresponding position on the first straight section 221.

[0042] Similarly, insert one side of the second compression spring 42 into the large end of the second stepped hole 62, and make the other end of the second compression spring 42 abut against the outer wall of the corresponding side on the second straight section 222. Then insert the second guide rod 52 into the small end of the second stepped hole 62, and pass through the large end of the second stepped hole 62 and be sleeved inside the second compression spring 42. Continue to insert it so that the insertion end of the second guide rod 52 is screwed and fixed to the threaded hole at the corresponding position on the second straight section 222.

[0043] Next, a retaining ring 24 is installed in the mounting groove 23 on one side of the connecting rod 22. The guide wheel 21 is pushed on the connecting rod 22, and one side of the wheel axle on the guide wheel 21 abuts against the inner wall of the retaining ring 24. Then, a retaining ring 24 is also installed in the mounting groove 23 on the other side of the connecting rod 22. In this way, the inner walls of the two retaining rings 24 protruding from the mounting groove 23 abut against the wheel axle and are limited, that is, the guide wheel 21 is installed and positioned.

[0044] Finally, place the installed guide wheel 21 at the position of the placement hole 15, and make one side of the guide wheel 21 extend into the placement hole 15 and protrude from the inner side wall of the support rod 1. Then, screw the fixing plate 2 to the horizontally extending extension 14 on the outer side wall of the support rod 1. It should be noted that the two placement holes 15 at corresponding positions on the two support rods 1 are symmetrically arranged, that is, the two guide wheels 21 at corresponding positions on the two support rods 1 are symmetrically arranged in the direction of transfer.

[0045] In use, the power motor 11 is turned on, and the pallet carrying the sand box is placed on the drive shaft 10. The rotation of multiple drive shafts 10 driven by the chain drives the pallet to move in sequence. When the placement position is off, one side of the pallet hits the guide wheel 21, and the connecting rod 22 squeezes the compression springs at both ends. The elastic force of the compression springs drives the connecting rod 22 to move back, and the wheel surface of the guide wheel 21 is pressed against the outer wall of the moving pallet. This causes the pallet to have a longitudinal movement tendency in the transverse transfer direction. This limits the movement position of the pallet to always be in the middle position of the drive shaft 10, so as to prevent the pallet from scraping against the support rod 1 and causing movement jamming, thus fully ensuring the smooth movement of the pallet.

[0046] During this process, since the guide wheel 21 will cause the non-screwed end of the guide rod to extend out of the stepped hole when it is impacted, a first baffle 71 and a second baffle 72 are respectively provided on the outer side of the small hole end of the two stepped holes to prevent the guide rod from extending out and injuring people. At the same time, in order to avoid the two protruding baffles from causing damage by moving interference in the space position outside the support rod 1, both baffles are designed as arc-shaped structures, and the protruding end of the arc-shaped structure extends outward horizontally. Meanwhile, the distance between the inner sidewall of the two baffles and the outer end face of the guide rod at the corresponding position is greater than the deformation displacement length of the compression spring, so as not to interfere with the displacement of the compression spring under force deformation.

[0047] If the guide wheel 21 needs to be replaced, the screw-on fixing plate 2 needs to be removed, the guide wheel 21 needs to be taken out from the placement hole 15, the two baffles need to be loosened and removed, the two guide rods need to be loosened and removed and the two compression springs need to be taken out. Then, the two ends of the snap ring pliers (not marked) need to be inserted into the clamping hole 25 respectively, and the opening of the snap ring 24 needs to be opened by the inserted end of the snap ring pliers. The two snap rings 24 need to be taken out from the two mounting slots 23. Finally, the guide wheel 21 can be removed and replaced by pulling out the connecting rod 22. Then, the new guide wheel 21 can be replaced by following the above-mentioned relevant operating steps.

[0048] It should be noted that, since the sand box has a certain weight, a rubber sleeve 12 is fixedly fitted on the outer wall of each drive shaft 10. This is to increase the transmission friction between the drive shaft 10 and the pallet, which helps to move the pallet and prevents the drive shaft 10 from spinning freely and causing transmission failure. At the same time, multiple relief grooves 13 are evenly provided on the rubber sleeve 12 along the length of the drive shaft 10. When the pallet carrying the sand box is placed on the rubber sleeve 12, the outer wall of the rubber sleeve 12 is compressed and deformed at the groove opening of the relief groove 13. This can adapt to the uneven deformation caused by the pressure in a timely manner, avoid the overall compression deformation of the outer wall of the rubber sleeve 12, extend the service life, and prevent the transmission efficiency from decreasing.

[0049] The number of drive shafts 10 in this embodiment should be determined according to the distance of the transfer stroke. At the same time, in conjunction with the use of the rubber sleeve 12, the placement holes 15 and guide wheels 21 should also be set at equal intervals according to the size specifications of the pallet. In the direction of movement, it is advisable that the pallet does not produce obvious deviation between two adjacent guide wheels 21.

Claims

1. A sand box conveying device, characterized in that: The system includes a support fixed to the ground and a transmission mechanism mounted on the support. The support includes two parallel support rods (1). The transmission mechanism includes a transmission shaft assembly between the two support rods (1). Multiple guide mechanisms are detachably mounted on each support rod (1) above the corresponding transmission shaft assembly along the length of the support rod (1). In use, the pallet carrying the sand box is driven to move by the transmission shaft assembly, and the guide mechanisms help limit the position of the pallet to prevent the pallet from contacting the support rod and causing jamming, thereby ensuring the smooth movement of the pallet during the transfer process.

2. The sand box conveying device as described in claim 1, characterized in that: The drive shaft assembly includes multiple drive shafts (10) arranged parallel to each other along the length of the two support rods (1). A power motor (11) is provided on one side of the support rod (1) near the sand box insertion end. The output end of the power motor (11) is connected to the corresponding drive shaft (10). Adjacent drive shafts (10) are connected by chain drive.

3. The sand box conveying device as described in claim 2, characterized in that: A rubber sleeve (12) is fixedly fitted on the outer side wall of each of the drive shafts (10), and a plurality of clearance grooves (13) are uniformly provided on the rubber sleeve (12) along the length direction of the drive shaft (10).

4. A sand box conveying device as described in claim 2, characterized in that: Each of the guide mechanisms includes a fixed plate (2) mounted on the support rod (1), a base plate (20) connected to the fixed plate (2), and a guide wheel (21) movably mounted between the fixed plate (2) and the base plate (20). A horizontally extending extension section (14) is provided on the outer side wall of the support rod (1), and the fixed plate (2) is screwed to the extension section (14). A placement hole (15) is provided on the support rod (1) at the position corresponding to the guide wheel (21), and one side of the guide wheel (21) extends into the placement hole (15) and protrudes from the inner side wall of the support rod (1).

5. A sand box conveying device as described in claim 4, characterized in that: The fixing plate (2) and the base plate (20) together form a "U" shaped groove. The guide wheel (21) is set in the "U" shaped groove. A connecting rod (22) is detachably sleeved in the middle of the guide wheel (21). The fixing plate (2) is provided with a first guide groove (31) for inserting one side of the connecting rod (22). The base plate (20) is provided with a second guide groove (32) for inserting the other side of the connecting rod (22). A first compression spring (41) is provided in the first guide groove (31) with one end abutting against the insertion end of the connecting rod (22). The other end of the first compression spring (41) abuts against the corresponding position in the first guide groove (31). A second compression spring (42) is provided in the second guide groove (32) with one end abutting against the insertion end of the connecting rod (22). The other end of the second compression spring (42) abuts against the corresponding position in the second guide groove (32).

6. A sand box conveying device as described in claim 5, characterized in that: The connecting rod (22) is inserted into the first guide groove (31) on one side with a rectangular cross section (221). The outer wall of the first straight section (221) on the corresponding side is fitted to the groove wall of the first guide groove (31). A first stepped hole (61) is provided on the side wall of the first guide groove (31). A first compression spring (41) is provided in the large hole end of the first stepped hole (61). One side of the first compression spring (41) abuts against the stepped surface of the first stepped hole (61), and the other side of the first compression spring (41) abuts against the outer wall of the first straight section (221). A horizontally extending first guide rod (51) is screwed to one side of the first straight section (221). The extended end of the first guide rod (51) passes through the first compression spring (41) and extends into the small hole end of the first stepped hole (61).

7. A sand box conveying device as described in claim 6, characterized in that: The connecting rod (22) is inserted into the second guide groove (32) on one side with a rectangular cross section, and the outer wall of the second straight section (222) on the corresponding side is fitted to the groove wall of the second guide groove (32); a second stepped hole (62) is provided on the side wall of the second guide groove (32), and a second compression spring (42) is provided in the large hole end of the second stepped hole (62). One side of the second compression spring (42) abuts against the stepped surface of the second stepped hole (62), and the other side of the second compression spring (42) abuts against the outer wall of the second straight section (222); a horizontally extending second guide rod (52) is screwed to one side of the second straight section (222), and the extended end of the second guide rod (52) passes through the second compression spring (42) and extends into the small hole end of the second stepped hole (62).

8. A sand box conveying device as described in claim 7, characterized in that: Two mounting slots (23) are symmetrically provided on the connecting rod (22), and an open snap ring (24) is embedded in each mounting slot (23). The open end of the snap ring (24) is symmetrically provided with two clamping holes (25). A wheel axle is sleeved in the guide wheel (21), and the outer walls on both sides of the wheel axle are fitted to the inner walls of the snap ring (24) on the corresponding sides.

9. A sand box conveying device as described in claim 7, characterized in that: A first baffle (71) with an outward protrusion is screwed onto the outer wall of the fixing plate (2) at the position corresponding to the first step hole (61); a second baffle (72) with an outward protrusion is screwed onto the outer wall of the bottom plate (20) at the position corresponding to the second step hole (62).

10. A sand box conveying device as described in claim 9, characterized in that: Both the first baffle (71) and the second baffle (72) are arc-shaped structures.

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